Simple and Automatic Vacuum Brakes

Simple and Automatic Vacuum Brakes

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1892 edition. Excerpt: ...and M is airway to vacuum reservoir, or auxiliary pipe, as the case may be. Diagram No. 4 is a drawing in cross section of the converting-valve. In this section, the reader is enabled to view the part to which the reversing levers are attached for altering the valve to automatic vacuum, and also the perforations through which the air enters to the underside of piston when working simple vacuum. The lever for reversing is attached to the valve at D, and, when working simple vacuum, the external atmosphere enters to the underside of the piston through the perforations in the valve at L, and passes to the underside of the piston through N, while the air is extracted from the topside of the piston through E. To prevent the valve from overshooting either position in reversing, a quadrant is formed in the seating at A, and a projection of the valve fits into this quadrant, so that the valve can only be moved the distance of the quadrant, thus ensuring the valve being placed in the right position for whichever brake it is intended to use. Diagram No. 5, drawing of reversing part of convertingvalve in longitudinal section.--L is the perforated part of the valve through which the air enters when set for simple vacuum, and thence passes through N to the underside of the piston, while the air from the topside of the piston is extracted by the ejector through E. s Diagram No. 6.--This is a drawing of converting-valve for carriage brake cylinder, having no reservoir. This valve has only one airway, marked S, which connects to the main airpipe; there is also a spindle, which connects with the releasevalve and to the lever R at the point P. The air from the topside of the piston, when working automatic brake, is drawn past the ball-valve, which is...This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1892 edition.


Title:Simple and Automatic Vacuum Brakes
Author: Christopher Briggs
Publisher:Theclassics.Us - 2013-09
ISBN-13:

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